Video Door Phone
A video door phone is a security device that allows homeowners to see and communicate with visitors at their door before granting access. It typically consists of an outdoor camera unit with a doorbell and an indoor monitor that displays live video. Some systems include two-way audio for communication and remote unlocking features. Video door phones enhance home security by allowing users to verify visitors’ identities without opening the door. Advanced models may also connect to smartphones, enabling remote monitoring and control.
Boom Barrier
Circular Convex mirrors
Circular convex mirrors on the road are safety devices installed at intersections, sharp curves, or blind spots to enhance drivers’ visibility. Their outward-curved surface provides a wide-angle view, allowing drivers to see oncoming vehicles, pedestrians, or other obstacles that are otherwise hidden from direct sight. These mirrors help prevent accidents by giving a broader perspective of the road, especially in areas with limited visibility. Commonly found in parking lots, driveways, and narrow roads, they are essential for improving road safety.